IPhone, VPN and 'data roaming'  (UK)

I had great difficulty setting up a VPN link to my university server. Even with identical settings to those on my laptop(s) the iPhone persistently produced the immediate message 'the server does not exist' (Oh! yes it does!). This applied on the EDGE, and more than one WiFi network. (And of course I checked the name very carefully!)
Anyone else with similar problems might like to know that I have solved this, for reasons I am unclear about, by:-
1 - substituting the (hopefully static) numeric IP address for the VPN server name
2 - turning 'on' Data Roaming (default being off)
Neither of these two measures works on their own but the combination works fine. Whilst the first might be easily explained by some DNS issue I do not see why the second measure is necessary, and there are dark warnings about charges in the handbook. What is 'data roaming' and why should it make a difference even when logged into the phone's home network?
Comments appreciated!

When you are outside the normal O2-UK coverage zone (i.e., in another country), then the phone is "Roaming". The Data Roaming switch can be used to control whether the iPhone tried to make a GPRS/EDGE data connection when the phone is roaming. I.e., when your phone is connected to a non-02 network.
If you are in the UK and connected to 02 while trying to connect to your VPN server, then you should not need to turn Data Roaming on. However, if you are trying to connect to your VPN server whilst outside the UK, then I would expect you to need to turn on Data Roaming (unless you are using WiFi)
Hope that clear things up.

Similar Messages

  • Face time with wifi only.  I have a 4Gs iPhone traveling to Japan.  Can I use face time with another 4Gs or IMacback in the States using just wifi and with I have my Celluar Data and Data Roaming off?

    Face time with wifi only.  I have a 4Gs iPhone traveling to Japan.  Can I use face time with another 4Gs or IMacback in the States using just wifi and with I have my Celluar Data and Data Roaming off?

    Thanks,  After changing my settings in face time per your suggestion, (it needed to be done),  I turned off cellular data and data roaming and made a call using face time.  It worked!  Great way to stay in touch while overseas without the need for those egregious phone data plans. 

  • Do I need to turn off Voice And Data Roaming On My iPhone 5 When I Am In The USA And NOT Travelling?

    Do I need to turn off Voice And Data Roaming on my iPhone 5 if I am NOT traveling  and I am in the USA?
    Also can it stay on if I am traveling just through the USA and not getting near any Borders of the Country?
    Thanks in advance.

    wifi is not something you can be charged for

  • I turned off cellular data, and data roaming while traveling abroad.  I turned them back on upon arriving back home, but now only the wi-fi features works when trying to connect to the internet.   Texting works, no internet function works unless wi-fi???

    I turned off my cellula data and data roaming while abroad.  I turned them back on when returning home.  But now I can only access internet and mail functions when on wi-fi.  texting works.  The 3G access to the internet isn't working now.  3g is on.  What do I need to do to restore non-wi-fi internet function.  Roaming is on s well.  ?????

    Try to reset your iPhone:
    Settings>>General>>Reset>>Reset All Settings
    You will need to rejoin all wi-fi and/or bluetooth connections
    You will need to set up your settings of your choice.
    Information (such as contacts and Calendars) and meida (such as music, videos, apps) are NOT affected.

  • HT1937 I'am using airtel carrier in India. I had switched on data network and data roaming. But still i'am not able to reset the data network. It remains the same previous carrier. How can i change this?

    anybody can help me in reseting the data network. i switched on my cellular data and data roaming. But still the cellular data network remains same , my earlier carrier. How can i reset it now?

    anybody can help me in reseting the data network. i switched on my cellular data and data roaming. But still the cellular data network remains same , my earlier carrier. How can i reset it now?

  • HT1807 in the general setting, i turned off cellular and made sure that the cellular date, enable lte and data roaming was off. if when off, i was receiving telephone calls while travelling in the usa

    while travelling in the usa, i turned off cellular in settings and also made sure that the cellular data, enable lte and data roaming was off. \however, i was still receiging telephone calls

    Turning off cellular data doesn't turn off the ability of the phone to make or receive phone calls. In order to do that, you'd need to put the phone in Airplane Mode.

  • HT1807 I am traveling from the USA to Kuwait, can I still use Whatapp if I turn off the voice and data roaming capability?

    I am traveling from the USA to Kuwait, Can I still use Whatsapp if I turn off the voice and data roaming capability?

    If you turn off voice & data, you can only use wifi.

  • With two iPhones 4, turning on Facetime on both iPhones, turning on Data Roaming, Enable 3G, cellular data.  Wifi has been enabled on, Wi-Fi is on, 'ask to join networks' is on.  I cannot get the two iPhones 4 to do 'FaceTime' with each other.  Changes?

    May 16, 2011:  The two iPhone 4 phones, being next to each other, cannot do FaceTime.  with Data Roaming = On, Wi-Fi = On, 'Ask to join Networks' = On, Enable 3G = On, Cellular Data = On,
    Why is Facetime on one iPhone 4 not connecting to ther other iPhone 4 when both have the 'FaceTime' icon showing on both? 

    I will through that note and have applied the items in that note on both iPhones.  Both iPhones are in the same physical location.  Both appear to be connected to a wi-fi network.  Still no FaceTime connection.  Is it such that both iPhones must be connected to a Wi-Fi and that wifi must be a network without a password needed to join it?  I thought 'Data Roaming = On' was such that iPhone 4 would then find a wifi network without a password needed and one could use FaceTime. 
    Is that the incorrect assumption?   If yes or no, what specific items are needed to be checked before I do this again or be checked while attempting FaceTime.

  • How to migrate iPhone apps and data to another apple ID

    OK, Hopefully someone can help me out with this situation:  I have had my daughter's iPhone associated with my Apple ID for several years now because A) She was too young to have an Apple ID of her own, and B) I wanted to be able to monitor her App Store purchases and such. Well now that she is older and has proven herself to be a responsible young lady, I want to get her her own Apple ID, as she will be getting a new McBook as a graduation present.  My question is this: Is it possible to migrate all the apps and data from her phone to a new Apple ID without having to download all those apps again?  I backup her phone to my computer on a regular basis.  Any help is appreciated.

    hold on a second. i went thru the same situation with my daughter, almost exactly as she got a new macbook pro and a new iphone 4. she had an ipod touch 4g that she synced to my macbook pro and apple id for apps. with wjosten's (the guy who wrote the article randers4 linked) help we transferred purchases from her ipod touch to her new itunes on her new macbook with her new apple id. except for those apps that she already had she started all fresh. i figured at some point she'll be moving out and off to college or whatever so might as well start all fresh but she didn't want to lose data she had on some of the old apps. the only issue is when there is an update for the old apps on her new macbook pro i have to sign in on my apple id to update them. i don't know if this info will be of any help or not, but just throwing it out there.

  • Date usage and data roaming

    on my palm pixi plus theres am option to turn data usage on or off and enable or disable data roaming, i understand i need data usage on or it will not connect to the internet, however what does data roaming do? still works fine when its disabled so im wondering whats the difference?
    many thanks
    Post relates to: Pre Plus p100una (AT&T)

    Roaming on other carrier's data networks.

  • Hi. Can you tell me if using the sat nav functionality on the in-built maps app on my iphone 5, uses just GPS (hence no cost) or GPS and data roaming, hence a running cost for the extent of my journey?

    Hi
    As the tile says, I am looking to find out if I need to purchase an actual Sat-nav app or if I can use the inbuilt functionality and not incur additional data charges
    Thanks

    The built in Maps apps requires a data connection to download mapping data. So, if you want to avoid data costs, you need to purchase a navigation app that stores the data locally on your phone.

  • QS about iphone CGImageCreate and data from standard BMP bits? wrong result

    hi,everybody:
    i have a gdi engine that result in the standard bmp bits stream ,and now i wanna to display it by the CG in iphone , i use it like this:
    <code>
    // size -> image size // rect -> current view rect //pBits -> the BITMAPINFO image bits stream
    long imgSizePerRow = ((long)(24 * size.width + 31) / 32) * 4;
    CGDataProviderRef providerRef = CGDataProviderCreateWithData(NULL, pBits, imgSizePerRow * size.height, NULL);
    CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();//
    CGImageRef imageRef = CGImageCreate(size.width, size.height,
    8, 24, //bitsPerComponent //bitsPerPixel
    imgSizePerRow,
    colorSpaceRef, kCGBitmapByteOrderDefault , providerRef,
    NULL, YES, kCGRenderingIntentDefault);
    CGContextDrawImage(context, rect, imageRef);
    CGImageRelease(imageRef);
    CGColorSpaceRelease(colorSpaceRef);
    CGDataProviderRelease(providerRef);
    </code>
    attention: i check the row pixel fit to the times of 4
    My gdi generate the bits stream , in this case , R8G8B8 format , no alpha channel ,i use this for CGDataProviderRef and draw the CGImage to my view. it is strange that the image's color seems change, yet the whole shape seems ok , i save the bits stream by BITMAP FORMAT to a file before, and make a contrast , everything seems ok just the whole color space.

    **** it , i got the wrong sequence of pixel sequcence, the standard BITMAP stream is B-G-R,
    YET the mac's core Image is like B-G-R . THAT'S OK !

  • Question about iphone 4 and data plan..

    I have the 3GS with unlimited data.
    I am getting the iphone 4.
    I will be giving 3GS to wife.
    Will the unlimited data plan only stay for the 3GS?
    Or can it be transferred to the iphone 4?
    Or can I get unlimited plan for both since I'm an existing customer?
    Thanks!!

    You can continue with your unlimited plan on the new phone. Your wife will have to choose one of the new data plans for the 3GS.

  • Data roaming setting does not show up on iPhone 4S

    My wife got a new iPhone 4S from Verizon a few weeks and and she's been using it with no probolems since then. Yesterday we crossed the board into Canada and I tried to turn "Data Roaming" off on her phone but the "Data Roaming" setting does not exist in Settings->General->Network. On my Verizon iPhoen 4S it has the optios "Voice Roaming" and  "Data Roaming" but on hers only "Voice Roaming".
    I was able to turn off all cellular data but that's actually inconvenient because we're right on the border and often go in an out of US cell converage areas, so with data roaming off it lets me use data whenever there's a US cell signal and otherwise prevents me from using data on a Canadian signal, but with all cellular data off, you have to constantly be toggling the setting when you think you go from a cell tower in the Canada to one in the US.
    Does anybody have any idea why the "Data Roaming" setting does not exist on her phone yet it does on mine? Both phones are running iOS 5.0.1.

    On your wife's phone: Dial *228. When prompted, select 2 to update her roaming capabilities. When complete, you will hear a confirmation message. In about a minute, you will also see an alert that your service update is complete. See if doing that fixes things.

  • Cellular Data turned off, Data Roaming greyed out and shows as on

    I've googled the **** out of this and still can't find the answer so here goes.
    If I have both Cellular Data and Data Roaming ON and then turn Cellular Data OFF then the Data Roaming label and ON/OFF toggle both turn grey and light blue respectively, but the Data Roaming still shows as ON (in light blue not the regular blue colour). Does this mean that Data Roaming is actually still on? If not, then why doesn't it show as OFF or are we supposed to interpret the fact that it is greyed out to mean that it is actually off when it shows ON?

    You're welcome.
    I don't see what difference it makes. Cellular Data off means cellular data is off. Someone who is roaming internationally with Data Roaming turned on wants data turned off completely for a period of time can turn Cellular Data off without turning Data Roaming off. When turning Cellular Data back on, Data Roaming is already on.
    An iPhone can exchange SMS for certain with Cellular Data turned off, but I don't believe the same applies to MMS.
    Having 3G network access on or off has 3G network access on or off only. The same amount of data will be exchanged with 3G access off only at a slower rate. If you download the same photo via a fast broadband connection vs via a much slower old dial-up connection, the same amount of data will be downloaded only slower via the dial-up connection.

Maybe you are looking for